Well 255/85s are taller then 33. 275/85 is the sameish height..i think its a bit lower but much wider. From like 9ish '' wide to 11.5ish wide.

you'll have to trim tho if your on stock rims due to the back spacing. Or get some top quality wheel spacers(Spidertraxx,Allpro). Or get some new rims with the right BS. Could get some 15s Cheaper tires..and could get 33x12.5s..